The overall allowance for cash and/or stocks and shares ISAs for the current tax year is £11,280. For the new tax year, beginning on 6 April, this will rise to £11,520 and the limit for cash ISAs will go up to £5,760 from £5,640.

With the deadline to deposit money into your tax-free cash ISA account just under a month away, now is the time to take advantage of the market-leading deals.

Instant-access cash ISA

Your best bet is Cheshire Building Society’s ISA Saver Issue 1 account, which pays 2.5% including a 2% bonus payable to 31 July 2014.

A minimum deposit of £1,000 is required. With the instant-access cash ISAs from Harpenden Building Society and Stafford Railway Building Society both paying 2.25% these might also be worth a look.

One-year fixed-rate cash ISA

Metro Bank is on the top of the pile with its one-year fixed-rate cash ISA which pays 2.25% and allows transfers in from other providers.

The one-year fixed-rate ISA from Halifax is hot on its heels with a rate of 2.05% although a minimum deposit of £500 is required.

Two-year fixed-rate cash ISA

So long as you’re happy to lock your money up for two years, the two-year fixed-rate cash ISA deal from Halifax paying 2.5% is the best in the market at present.

Three-year fixed-rate cash Isa

The ISA Saver Fixed from Halifax pays 3% on initial balances of at least £500. Bank of Scotland and Virgin Money are not far behind, both offering a rate of 2.4%.

Four-year fixed-rate cash ISA

The best four-year fixed-rate cash Isa deal is currently offered by Halifax and pays 3.05% on deposits over £500.

Five-year fixed-rate cash ISA

Paying 3.1%, the Halifax's ISA Saver Fixed account currently comes up trumps when it comes to five-year fixed-rate cash ISAs. Virgin Money is a close second with its cash e-ISA paying 2.75%.